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Galapogoes islands-
Walkable
How many species of finches were there?
13
You need the right tools (beaks)….
……for the right job
How are the finch species related to each other?
their closer to each other than anyone is to a species on the mainland
Where do the finches come from?
one single common ancestor
What happened in 1977?
a drought came and the finches had to compete for food
what beaks were more common/better when the drought came?
small beaks
What beaks were more common before the drought?
big beaks
Do different species sing different songs?
yes
How many species did one finch from the mainland turn into?
13
were there larger seeds when el nino came?
no, there were just small ones
What percent of finches died when the drought came?
Over 80%
What island were they on?
Daphne major island
what do finches show/ give an example of?
how species evolved and traveled
what did natural selection do?
change the beak size
when a bird heard its on kind sing did they go to a different kind of bird?
no
What does a wood pecker finch concentrate on?
larvae
Who were the finches first brought to?
charles darwin
Who are the ones that were studying the finches?
the grants
How many years did the grants study them for?
40 years
Was the grants trip supposed to be long term?
No